Sure this belongs here Renegade? Seems more like a general discussion.

On topic: I do use the chaos blade but as I read Miyamoto Musahi's book: To become overly attached to one weapon is as bad as not knowing it sufficiently well. As such I got the claymore and the lifehunt scythe to learn how to use.

It is a weapon called The Spur. In game, it looks like that too, but much smaller. It is better at lower levels. You can charge up a beam which does more damage the longer you hold the trigger down, and it penetrates projectiles and people alike, causing damage to multiple parts of the body. Getting this weapon is a test of skill, where you have to keep with the starter weapon for a long period of the game, and jump over a massive crevice without the use of the Machine Gun, which you could have got instead. The Machine Gun allows you to fly by shooting the floor a lot. Anyway, on full charge, the weapon can do 251 damage per shot, more than 100 shots of a highest level machine gun would do.